Mump 0712 04 Z Ncase

Aside from its nodular iron construction, the Ford N-case sports a beefy pinion support, which is a key failure point in 8- and 9-inch differentials. If an N-case is outside your budget, try the C7AW-E case. Stay away from WAR and WAB waffle cases, as they aren't as strong and are known for cracking.